Fail test if TMPDIR is not writable

MANIFEST

@@ -17,6 +17,7 @@ t/coverage.t
 t/critic.t
 t/cv.t
 t/dist.t
+t/eol.t
 t/gv.t
 t/is_cached.t
 t/js.t

Makefile.PL

@@ -1,6 +1,13 @@
 use strict;
 use warnings;
 use ExtUtils::MakeMaker 6.64;	# 6.64 for TEST_REQUIRES
+use File::Spec 3.4;
+
+my $tmpdir = File::Spec->tmpdir();
+if(!-w $tmpdir) {
+	print STDERR "NA: Your temporary directory '$tmpdir' isn't writable, fix your configuration and try again";
+	exit(0);
+}
 
 WriteMakefile(
 	NAME	=> 'CGI::Buffer',

t/eol.t

@@ -0,0 +1,20 @@
+use strict;
+use warnings;
+
+use Test::Most;
+
+BEGIN {
+	if($ENV{AUTHOR_TESTING}) {
+		eval {
+			require Test::EOL;
+		};
+		if($@) {
+			plan(skip_all => 'Test::EOL not installed');
+		} else {
+			import Test::EOL;
+			all_perl_files_ok({ trailing_whitespace => 1 });
+		}
+	} else {
+		plan(skip_all => 'Author tests not required for installation');
+	}
+}

t/js.t

@@ -26,7 +26,7 @@ OUTPUT: {
 	use CGI::Buffer;
 
 	CGI::Buffer::set_options(optimise_content => 2);
-	
+
 	print "Content-type: text/html; charset=ISO=8859-1";
 	print "\n\n";